Hydrogen storage cylinder recycling cutting device

Abstract

This utility model discloses a cutting device for recycling hydrogen storage cylinders, belonging to the field of cylinder recycling. It includes a base, a cutting assembly fixedly connected to the base, a fastening assembly fixedly connected to the base, and a drilling assembly fixedly connected to the base. The cutting assembly includes a bracket fixedly connected to the base, a motor frame fixedly connected to the bracket, a high-speed motor fixedly connected to the motor frame, a cutting blade fixedly connected to the high-speed motor, and a handle fixedly connected to the motor frame. This utility model involves pre-drilling a hole at the center of the bottom of the hydrogen storage cylinder, then installing the cylinder on the fastening assembly, removing the valve head, and drilling the drill bit into the hole at the bottom of the cylinder. Air is pumped in through a gas pipe to expel any remaining hydrogen from the cylinder, reducing the hydrogen concentration below the explosive concentration to prevent an explosion. The cutting assembly is then used for cutting, protecting worker safety and reducing safety risks.

Description

Technical Field

[0001] This utility model relates to the field of gas cylinder recycling technology, specifically a cutting device for recycling and utilizing hydrogen storage gas cylinders. Background Technology

[0002] Hydrogen is a gas with low molecular weight, high calorific value, and is flammable and explosive. It is often used in metal cutting or aerospace. In the field of metal cutting, hydrogen is usually stored in steel cylinders with high internal pressure, requiring tight valves to prevent leakage.

[0003] After the hydrogen in a hydrogen cylinder is used up, due to the low internal pressure, it is difficult to completely purge the remaining hydrogen. When the remaining hydrogen mixes with oxygen and comes into contact with a spark, it can explode, which is extremely dangerous. Hydrogen cylinders are relatively expensive and are generally recycled. When cutting a hydrogen cylinder, if the hydrogen inside is not completely purged, the sparks generated during cutting can easily ignite the hydrogen, causing danger. Therefore, a device is needed to purge the remaining hydrogen in the cylinder before cutting to prevent explosion.

[0004] An investigation revealed that a Chinese utility model patent (publication number: CN205324833U) discloses a gas cylinder steel pipe cutting device, comprising a cutting machine base fixedly mounted on the ground, a steel pipe support roller and a power mechanism for driving the steel pipe support roller to rotate on the cutting machine base, two guide columns vertically mounted on the cutting machine base, and a lifting mechanism mounted on the guide columns. The upper end of the lifting mechanism is fixed to the guide columns, and the lower end of the lifting mechanism is mounted on a cutting device. The cutting device includes a cutting blade, a cutting blade fixing frame, and a drive mechanism for driving the cutting blade to rotate. The cutting blade is rotatably mounted on the cutting blade fixing frame. This utility model's gas cylinder steel pipe cutting device can cut high-strength steel pipes with high cutting precision and good cut smoothness.

[0005] Existing technologies offer high cutting precision and smooth cuts, but the high-temperature metal particles or sparks generated during the cutting process can easily explode when they come into contact with a mixture of hydrogen and oxygen. Therefore, a device is needed to empty the remaining hydrogen in the hydrogen cylinder before cutting.

[0006] Therefore, this utility model provides a cutting device for recycling hydrogen storage cylinders to solve the above problems. Utility Model Content

[0007] (a) Technical problems to be solved

[0008] This invention provides a cutting device for recycling hydrogen storage cylinders, which aims to solve the problems mentioned in the background art.

[0009] (II) Technical Solution

[0010] To achieve the above objectives, this utility model provides the following technical solution: a cutting device for recycling hydrogen storage cylinders, including a base, a cutting assembly fixedly connected to the base, a fastening assembly fixedly connected to the base, and a drilling assembly fixedly connected to the base;

[0011] The cutting assembly includes a bracket fixedly connected to a base, a motor frame fixedly connected to the bracket, a high-speed motor fixedly connected to the motor frame, a cutting blade fixedly connected to the high-speed motor, and a handle fixedly connected to the motor frame.

[0012] As a preferred technical solution of this application, the fastening assembly includes a bottle rack fixedly connected to the base, a screw hole opened on the bottle rack, an upper frame rotatably connected to the bottle rack, and a through hole opened on the upper frame.

[0013] As a preferred technical solution of this application, a hydrogen storage tank is fixedly connected to the fastening assembly, and a valve head is fixedly connected to the end of the hydrogen storage tank.

[0014] As a preferred technical solution of this application, the drilling assembly includes a slide rail fixedly connected to the base, baffles fixedly connected to both ends of the slide rail, a lead screw rotatably connected to the baffles, and a throttle fixedly connected to the lead screw.

[0015] As a preferred technical solution of this application, the drilling assembly includes a slider slidably connected in a slide rail, a drill bit fixedly connected to the slider, an air hole opened on the drill bit, and an air pipe fixedly connected to the end of the drill bit.

[0016] As a preferred technical solution of this application, the slider is rotatably connected to the lead screw, and the air holes are arranged circumferentially at the end of the drill bit, in several quantities.

[0017] (III) Beneficial Effects

[0018] This invention involves pre-drilling a hole at the center of the bottom of the hydrogen storage tank, then installing the tank on a fastening assembly, removing the valve head, and drilling the drill bit into the hole at the bottom of the tank. Air is then pumped in through a gas pipe to expel the remaining hydrogen from the tank, reducing the hydrogen concentration below the explosive concentration to prevent an explosion. Finally, a cutting assembly is used to cut the tank, protecting worker safety and reducing safety risks. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the separation of the hydrogen storage tank in this practical application;

[0021] Figure 3 This is an exploded view for practical use;

[0022] Figure 4 This is a structural diagram of the fastening assembly used in this utility model;

[0023] Figure 5 This is a structural diagram of the drilling assembly used in this utility model;

[0024] Figure 6 This is a structural diagram of the drill bit used in this practical application.

[0025] In the diagram: 1. Base; 2. Cutting assembly; 21. Bracket; 22. Motor frame; 23. High-speed motor; 24. Cutting disc; 25. Handle; 3. Fastening assembly; 31. Bottle rack; 32. Screw hole; 33. Upper rack; 34. Through hole; 35. Hydrogen storage tank; 36. Valve head; 4. Drilling assembly; 41. Slide rail; 42. Baffle plate; 43. Lead screw; 44. Rotary handle; 45. Slider; 46. Drill bit; 47. Air hole; 48. Air pipe. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] This utility model provides a cutting device for recycling hydrogen storage cylinders, such as... Figure 1-6 As shown, it includes a base 1, a cutting assembly 2 fixedly connected to the base 1, a fastening assembly 3 fixedly connected to the base 1, and a drilling assembly 4 fixedly connected to the base 1.

[0028] The cutting assembly 2 includes a bracket 21 fixedly connected to the base 1, a motor frame 22 fixedly connected to the bracket 21, a high-speed motor 23 fixedly connected to the motor frame 22, a cutting blade 24 fixedly connected to the high-speed motor 23, and a handle 25 fixedly connected to the motor frame 22.

[0029] The fastening assembly 3 includes a bottle holder 31 fixedly connected to the base 1, a screw hole 32 opened on the bottle holder 31, an upper frame 33 rotatably connected to the bottle holder 31, and a through hole 34 opened on the upper frame 33.

[0030] A hydrogen storage tank 35 is fixedly connected to the fastening assembly 3, and a valve head 36 is fixedly connected to the end of the hydrogen storage tank 35.

[0031] The drilling assembly 4 includes a slide rail 41 fixedly connected to the base 1, baffles 42 fixedly connected to both ends of the slide rail 41, a lead screw 43 rotatably connected to the baffles 42, and a throttle 44 fixedly connected to the lead screw 43.

[0032] The drilling assembly 4 includes a slider 45 slidably connected in the slide rail 41, a drill bit 46 fixedly connected to the slider 45, an air hole 47 opened on the drill bit 46, and an air pipe 48 fixedly connected to the end of the drill bit 46.

[0033] The slider 45 is rotatably connected to the lead screw 43, and the air holes 47 are arranged circumferentially at the end of the drill bit 46, in several quantities.

[0034] Specifically, before cutting the traditional hydrogen storage tank 35, the main method for workers to release hydrogen is to unscrew the valve head 36 and use the density difference of hydrogen to release it. However, this method takes a long time and cannot guarantee that it can be completely emptied. There is still a risk of fire and explosion during the cutting process.

[0035] During the pre-cutting process, a hole is drilled in the bottom of the hydrogen storage tank 35, resulting in a small leakage of hydrogen. The worker then places the hydrogen storage tank 35 on the cylinder rack 31 and secures it with the upper frame 33. Bolts are used to fix the upper frame 33 into the screw hole 32 through the through hole 34. The worker then unscrews the valve head 36 and cranks the handle 44, causing the lead screw 43 to rotate and forcing the slider 45 to slide, pushing the drill bit 46 into the pre-drilled hole. The gas pipe 48 is then connected, and high-pressure air is blown into the hydrogen storage tank 35. The high-pressure air quickly enters the hydrogen storage tank 35, rapidly diluting the hydrogen and carrying it out of the tank. The hydrogen concentration in the hydrogen storage tank 35 quickly decreases to below 4%, at which point it is safe to cut the hydrogen storage tank 35.

[0036] The worker then cranks the handle, presses down on the cutting component 2, and starts the high-speed motor 23. The high-speed motor 23 drives the cutting blade 24 to begin cutting the hydrogen storage tank 35. Since the hydrogen concentration is lower than the explosive concentration, even if sparks are generated, an explosion will not occur, which is beneficial to the worker's work safety.

[0037] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A cutting device for recycling hydrogen storage cylinders, comprising a base (1), characterized in that: It also includes a cutting assembly (2), which is fixedly connected to the base (1); a fastening assembly (3), which is fixedly connected to the base (1); and a drilling assembly (4), which is fixedly connected to the base (1). The cutting assembly (2) includes a bracket (21) fixedly connected to the base (1), a motor frame (22) fixedly connected to the bracket (21), a high-speed motor (23) fixedly connected to the motor frame (22), a cutting blade (24) fixedly connected to the high-speed motor (23), and a handle (25) fixedly connected to the motor frame (22).

2. The hydrogen storage cylinder recycling and cutting device according to claim 1, characterized in that: The fastening assembly (3) includes a bottle rack (31) fixedly connected to the base (1), a screw hole (32) opened on the bottle rack (31), an upper frame (33) rotatably connected to the bottle rack (31), and a through hole (34) opened on the upper frame (33).

3. The hydrogen storage cylinder recycling and cutting device according to claim 2, characterized in that: A hydrogen storage tank (35) is fixedly connected to the fastening assembly (3), and a valve head (36) is fixedly connected to the end of the hydrogen storage tank (35).

4. The hydrogen storage cylinder recycling and cutting device according to claim 3, characterized in that: The drilling assembly (4) includes a slide rail (41) fixedly connected to the base (1), baffles (42) fixedly connected to both ends of the slide rail (41), a lead screw (43) rotatably connected to the baffles (42), and a throttle (44) fixedly connected to the lead screw (43).

5. The hydrogen storage cylinder recycling and cutting device according to claim 4, characterized in that: The drilling assembly (4) includes a slider (45) slidably connected in a slide rail (41), a drill bit (46) fixedly connected to the slider (45), an air hole (47) opened on the drill bit (46), and an air pipe (48) fixedly connected to the end of the drill bit (46).

6. The hydrogen storage cylinder recycling and cutting device according to claim 5, characterized in that: The slider (45) is rotatably connected to the lead screw (43), and the air holes (47) are arranged circumferentially at the end of the drill bit (46), in several quantities.

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